array: mark array_peek argument as const

2 files changed, 2 insertions, 2 deletions

diff --git a/array.c b/array.c
index 7aec158..c61c697 100644
--- a/array.c
+++ b/array.c
@@ -165,7 +165,7 @@ void *array_pop(Array *arr) {
 	return item;
 }
 
-void *array_peek(Array *arr) {
+void *array_peek(const Array *arr) {
 	if (arr->len == 0)
 		return NULL;
 	return array_get(arr, arr->len - 1);
diff --git a/array.h b/array.h
index ebfa711..2a82535 100644
--- a/array.h
+++ b/array.h
@@ -128,6 +128,6 @@ void *array_pop(Array*);
  * .. warning:: The same ownership rules as for ``array_get`` apply.
  * @endrst
  */
-void *array_peek(Array*);
+void *array_peek(const Array*);
 
 #endif